Answer to Question #3970 in Calculus for dhiman

Question #3970

Can I get help to solve this question:
Find all the values of & x in the int(0,2pi) & for the equation sinx = -cosx

Expert's answer

sinx = -cos x
tan x = -1
x = 3/4 π + π n, n = 0,1
I.e.
x₁ = 3/4 π
x₂ = 7/4 π

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